Novel coronavirus has infected more than 31,400 people globally

The cruise ship Anthem of the Seas is docked at the Cape Liberty Cruise Port on Friday, Feb. 7, 2020, in Bayonne, N.J. Passengers were screened, as a precaution, for coronavirus. (AP Photo/Kevin Hagen)

Passengers disembark from the cruise ship Anthem of the Seas at the Cape Liberty Cruise Port on Friday, Feb. 7, 2020, in Bayonne, N.J. Passengers were screened, as a precaution, for coronavirus. (AP Photo/Kevin Hagen).

People wearing masks, walk in a subway station, in Hong Kong, Friday, Feb. 7, 2020. Hong Kong on Friday confirmed 25 cases of a new virus that originated in the Chinese province of Hubei. According to the latest figures, 233 new cases of the novel coronavirus have been confirmed globally, Hong Kong's Chief Secretary for Admissions told a news conference. (AP Photo/Kin Cheung)

FILE - In this Feb. 5, 2020, file photo, workers wearing protective gears prepare to spray disinfectant as a precaution against a new coronavirus at Namdaemun Market in Seoul, South Korea. In recent days, major shopping districts and other spots in the capital Seoul popular with Chinese tourists were relatively quiet. (AP Photo/Ahn Young-joon, File)

A plane carrying Canadians back Wuhan, China, lands at CFB Trenton, in Trenton, Canada Friday, Feb. 7, 2020. (Justin Tang/The Canadian Press via AP)

The cruise ship Anthem of the Seas is docked at the Cape Liberty Cruise Port on Friday, Feb. 7, 2020, in Bayonne, N.J. Passengers were screened, as a precaution, for novel coronavirus. (AP Photo/Kevin Hagen)